U.S. patent application number 16/713088 was filed with the patent office on 2020-06-25 for 3d display system.
The applicant listed for this patent is ASUSTeK COMPUTER INC.. Invention is credited to Wen-Chang HUNG, Xian ZHONG.
Application Number | 20200201068 16/713088 |
Document ID | / |
Family ID | 66997650 |
Filed Date | 2020-06-25 |
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United States Patent
Application |
20200201068 |
Kind Code |
A1 |
ZHONG; Xian ; et
al. |
June 25, 2020 |
3D DISPLAY SYSTEM
Abstract
A 3D display system includes a rotational base, a 3D projecting
device, an image capturing device, and a controller. The 3D
projecting device is rotatably disposed on the rotational base. The
image capturing device is disposed on the 3D projecting device. The
controller is electrically connected to the image capturing device,
the rotational base, and the 3D projecting device.
Inventors: |
ZHONG; Xian; (TAIPEI,
TW) ; HUNG; Wen-Chang; (TAIPEI, TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ASUSTeK COMPUTER INC. |
TAIPEI |
|
TW |
|
|
Family ID: |
66997650 |
Appl. No.: |
16/713088 |
Filed: |
December 13, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G02B 30/56 20200101 |
International
Class: |
G02B 30/56 20060101
G02B030/56 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 21, 2018 |
TW |
107217478 |
Claims
1. A 3D display system, comprising: a rotational base; a 3D
projecting device, rotatably disposed on the rotational base; an
image capturing device, disposed on the 3D projecting device; and a
controller, electrically connected to the image capturing device,
the rotational base, and the 3D projecting device.
2. The 3D display system according to claim 1, wherein the 3D
projecting device comprises: a displayer, configured to emit light
with a first light transport direction; an optical lens, configured
to change the first light transport direction of the light into a
second light transport direction; and a polarizer, defining a
triangular space together with the displayer and the optical lens,
and configured to reflect the light with the first light transport
direction and permitting the light with the second light transport
direction to transmit therethrough.
3. The 3D display system according to claim 2, wherein the light
emitted by the displayer passes through the polarizer, the optical
lens, and the polarizer in sequence.
4. The 3D display system according to claim 2, wherein the image
capturing device and the polarizer face toward the same
direction.
5. The 3D display system according to claim 2, further comprising:
a box, accommodating the displayer, the optical lens, and the
polarizer therein; a pivoting mechanism, pivotally connected to the
box, electrically connected to the controller, and configured to
simultaneously change positions of the displayer, the optical lens,
and the polarizer relative to the rotational base.
6. The 3D display system according to claim 2, further comprising:
a pivoting mechanism, electrically connected to the controller and
the 3D projecting device, and configured to change a position of
the displayer relative to the rotational base.
7. The 3D display system according to claim 2, further comprising:
a pivoting mechanism, electrically connected to the controller and
the 3D projecting device, and configured to change a position of
the optical lens relative to the rotational base.
8. The 3D display system according to claim 2, further comprising:
a pivoting mechanism, electrically connected to the controller and
the 3D projecting device, and configured to change a position of
the polarizer relative to the rotational base.
9. The 3D display system according to claim 1, wherein the
rotational base comprises a rotary column and the 3D projecting
device is fixed on the rotary column.
10. The 3D display system according to claim 1, wherein the
polarizer covers the displayer and the optical lens.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the priority benefit of Taiwan
Application Serial No. 107217478, filed on Dec. 21, 2018. The
entirety of the above-mentioned patent application is hereby
incorporated by reference herein and made a part of the
specification.
BACKGROUND OF THE INVENTION
Field of the Invention
[0002] The disclosure relates to a 3D display system.
Description of the Related Art
[0003] Currently, holographic technologies develop rapidly around
the world due to technological innovations, using approaches
ranging from basic holographic-like effects to the use of
semiconductor microstructures. These approaches are for example the
floating holographic-like effects with fixed projection directions
and more complex 360-degree holographic projection technologies.
Among them, the 360-degree holographic projection technologies are
difficult to implement is not suitable for mass production.
BRIEF SUMMARY OF THE INVENTION
[0004] According to the first aspect of the disclosure, a
3-Dimenional (3D) display system is provided. The 3D display system
includes: a rotational base; a 3D projecting device rotatably
disposed on the rotational base; an image capturing device,
disposed on the 3D projecting device; and a controller,
electrically connected to the image capturing device, the
rotational base, and the 3D projecting device. Based on the above,
the 3D display system of the disclosure allows a viewer to view a
3D image in 360 degrees, and the architecture of the 3D display
system is compatible with various existing 3D projecting devices,
offering the advantages of low costs and easy installation. In
addition, the 3D display system adjusts an optimal elevation angle
according to the viewer's height, providing an optimal effect for
the viewer viewing the image.
BRIEF DESCRIPTION OF THE DRAWINGS
[0005] FIG. 1 is a schematic diagram of a 3D display system
according to an embodiment of the present disclosure;
[0006] FIG. 2A is a top view of the 3D display system in FIG.
1;
[0007] FIG. 2B is a top view of the 3D display system in FIG.
1;
[0008] FIG. 3 is a schematic diagram of a 3D display system
according to another embodiment of the disclosure;
[0009] FIG. 4A is a schematic diagram of a 3D display system
according to still another embodiment of the disclosure; and
[0010] FIG. 4B is a schematic diagram of the 3D display system in
FIG. 4A in another state.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] Embodiments of the disclosure will be disclosed with
reference to drawings. For clarity of description, many practical
details will be explained together in the following description.
However, it is to be appreciated that the practical details are not
intended to limit the disclosure. In other words, the practical
details are not necessary in some embodiments of the disclosure. In
addition, for brevity of illustration, some customary structures
and elements are shown in the drawings in a simple, schematic way.
Unless otherwise indicated, the same reference numerals in
different drawings are used to refer to the same or like elements.
The drawings are provided only for the purpose of clearly
explaining the connection relationships between elements in the
embodiments and are not necessarily drawn to scale.
[0012] FIG. 1 is a schematic diagram of a 3-Dimenional (3D) display
system 100 according to an embodiment of the disclosure. As shown
in FIG. 1, the 3D display system 100 includes a rotational base
110, a 3D projecting device 120, an image capturing device 130, and
a controller 140. The 3D projecting device 120 is rotatably
disposed on the rotational base 110. The image capturing device 130
is disposed above the 3D projecting device 120 (i.e., at the top of
the entire 3D display system 100). The controller 140 electrically
is connected to the rotational base 110, the 3D projecting device
120, and the image capturing device 130.
[0013] As shown in FIG. 1, in an embodiment, the rotational base
110 supports the 3D projecting device 120 located thereon. In an
embodiment, the rotational base 110 includes a rotary column 111.
The rotational base 110 is connected to the 3D projecting device
120 through the rotary column 111. The 3D projecting device 120 is
rotatable relative to the rotational base 110 by the rotary column
111. The above embodiments are only examples and are not intended
to limit the disclosure. It is feasible to use any type of pivoting
mechanism to cause the 3D projecting device 120 to rotate.
[0014] As shown in FIG. 1, the 3D projecting device 120 is a
reflective 3D projecting device. In this embodiment, the 3D
projecting device 120 includes a housing (denoted by dashed lines
in FIG. 1), and a displayer 121, an optical lens 122, and a
polarizer 123 disposed inside the housing. The displayer 121, the
optical lens 122, and the polarizer 123 define a triangular space.
In this embodiment, the polarizer 123 covers the displayer 121 and
the optical lens 122. In this embodiment, the controller 140 is
also disposed inside the housing of the 3D projecting device
120.
[0015] As shown in FIG. 1, the displayer 121 emits light L toward
the polarizer 123. The light L is transmitted along a first light
transport direction R1, and the polarizer 123 is designed to
reflect the light L with the first light transport direction R1.
Therefore, the light L is reflected when reaching the polarizer
123. The light L is reflected by the polarizer 123 to the optical
lens 122. In an embodiment, the optical lens 122 changes the light
transport direction of the light L and reflect the light L back
along a path opposite to the incident path of the light L. When the
light L reaches the optical lens 122, the light transport direction
is changed from the first light transport direction R1 to a second
light transport direction R2. In this embodiment, the light L with
the second light transport direction R2 passes through the
polarizer 123 and reaches a viewer P outside the 3D projecting
device 120.
[0016] In other words, the light L passes through the polarizer
123, the optical lens 122, and the polarizer 123 in sequence, and
finally reaches the viewer P. When looking toward the polarizer
123, the viewer P observes a virtual image formed behind the
polarizer 123 by the light L. In this way, a plurality of beams of
light L emitted by the displayer 121 presents a 3D floating image
behind the polarizer 123.
[0017] As shown in FIG. 1, the image capturing device 130 and the
polarizer 123 face toward the same direction. In this embodiment,
the image capturing device 130 and the polarizer 123 of the 3D
projecting device 120 are located in the same plane. In other
embodiments, the image capturing device 130 and the polarizer 123
of the 3D projecting device 120 are located in different planes. In
this embodiment, the image capturing device 130 is configured to
detect a first elevation angle A1 and a first viewing angle O1
between the viewer P and the 3D projecting device 120 (see FIG. 2A
and FIG. 2B). Because the viewer P faces toward the polarizer 123
to view the 3D image projected by the 3D projecting device 120, the
image capturing device 130 and the polarizer 123 are configured to
face toward the same direction ensures that the image capturing
device 130 detects the viewer P located outside the 3D projecting
device 120.
[0018] As shown in FIG. 1, the controller 140 rotates the 3D
projecting device 120 through the rotational base 110 based on
information detected by the image capturing device 130. For
details, refer to FIG. 2A, which is a top view of the 3D display
system 100 in FIG. 1. As shown in FIG. 2A, the image capturing
device 130 detects that the viewer P is located on a cutting plane
S perpendicular to the 3D projecting device 120 (where the first
viewing angle O1 is 0 degrees, and therefore is denoted only by an
arrow). The controller 140 controls the rotational base 110 to be
fixed at an original position.
[0019] Next, refer to FIG. 2B, which is a top view of the 3D
display system 100 in FIG. 1. As shown in FIG. 2B, the image
capturing device 130 detects a second viewing angle O2 of the
viewer P on the left side of the plane S. In this embodiment, the
controller 140 controls the rotational base 110 to rotate so that
the plane S is aligned with the viewer P.
[0020] As shown in FIG. 2A and FIG. 2B, when the viewer P walks
around the 3D display system 100, the 3D display system 100
actively aligns the center of the 3D projecting device 120 to the
perspective of the viewer P according to the position of the viewer
P. In this way, the viewer P views, in all directions, the 3D image
presented inside the 3D projecting device 120.
[0021] In this embodiment, the controller 140 further controls the
displayer 121 to present different images according to the position
of the viewer P detected by the image capturing device 130. In an
embodiment, when the viewer P is at the first viewing angle O1 in
FIG. 2A, the controller 140 controls the displayer 121 to present
an image of a 3D object obtained when viewing at the first viewing
angle O1. When the viewer P is located at the second viewing angle
O2 in FIG. 2B, the controller 140 controls the displayer 121 to
present an image of the 3D object obtained when viewing at the
second viewing angle O2.
[0022] Based on the above, the 3D display system of the disclosure
allows the viewer to view a 3D image in 360 degrees, and the
architecture of the 3D display system is compatible with various
existing 3D projecting devices, offering the advantages of low
costs and easy installation.
[0023] Next, refer to FIG. 3, which is a schematic diagram of a 3D
display system 200 according to another embodiment of the
disclosure. The difference between the 3D display system 200 in
FIG. 3 and the 3D display system 100 in FIG. 1 is that the 3D
display system 200 further includes a pivoting mechanism 210. The
pivoting mechanism 210 is electrically connected to the controller
140 and the displayer 121, the optical lens 122, and the polarizer
123 of the 3D projecting device 120. The pivoting mechanism 210 is
configured to change positions of the displayer 121, the optical
lens 122, and the polarizer 123 relative to the rotational base
110.
[0024] As shown in FIG. 3, in this embodiment, the displayer 121,
the optical lens 122, and the polarizer 123 inside the 3D
projecting device 120 are installed together inside a box 220. The
box 220 is pivotally connected to the pivoting mechanism 210, to
enable the box 220 to rotate along an axis of the pivoting
mechanism 210. In an embodiment, the box 220 moves relative to the
rotational base 110. As shown in FIG. 3, an angle A3 exists between
a bottom surface of the box 220 and a horizontal plane. When the
box 220 rotates along the pivoting mechanism 210, the angle A3
changes.
[0025] As shown in FIG. 3, after the box 220 rotates, the first
elevation angle A1 shown in FIG. 1 changes. In an embodiment, in
FIG. 3, a second elevation angle A2 exists between the viewer P and
the image capturing device after the box 220 rotates
counterclockwise. In this way, the pivoting mechanism 210 controls
the optimal elevation angle of the 3D display system 100.
[0026] As shown in FIG. 3, the image capturing device 130 detects
the first elevation A1 (see FIG. 1) between eyes of the viewer P
and the plane in which the image capturing device 130 lies. The
image capturing device 130 transmits elevation angle information to
the controller 140. The controller 140 further controls the box 220
to rotate according to the received elevation angle information.
Therefore, the viewers P of different heights to enjoy the optimal
image quality. On the other hand, the 3D display system of the
disclosure also enables the viewer P to enjoy the optimal image
quality when standing, squatting or in other postures to view the
3D display system 100.
[0027] Next, refer to FIG. 4A, which is a schematic diagram of a 3D
display system 300 according to still another embodiment of the
disclosure. The difference between the 3D display system 300 and
the 3D display system 200 is that the displayer 121, the optical
lens 122, and the polarizer 123 in the 3D projecting device 120 are
connected to different pivoting mechanisms 210 respectively. That
is to say, in the 3D display system 300, angles between the
displayer 121, the optical lens 122 as well as the polarizer 123
and the rotational base 110 are independently adjustable.
[0028] Refer to FIG. 4B, which is a schematic diagram of the 3D
display system 300 in FIG. 4A in another state. As shown in FIG.
4B, the displayer 121 is rotated counterclockwise and the optical
lens 122 is rotated clockwise. The angle at which the light L is
incident on the optical lens 123 is changed and the optical lens
122 is rotated accordingly, so that the angle at which the light L
is incident on the optical lens 122 remains unchanged (the same as
FIG. 4A). In this way, the light L is reflected back to the
polarizer 123 along the path a path opposite to the incident path
of the light L. As shown in FIG. 4B, the light L passes through the
polarizer 123 and then reaches the viewer P, and the angle between
the viewer P and the plane in which the image capturing device 130
locates is changed from the first elevation angle A1 to the second
elevation angle A2. That is to say, the elevation angle of the 3D
display system 300 is controlled by rotating the displayer 121 and
the optical lens 122 while keeping the polarizer 123 still.
[0029] As shown in FIG. 4B, the 3D projecting device 120 detects a
vertical height between the viewer P and the rotational base 110.
The 3D projecting device 120 transmits height information to the
controller 140, and the controller 140 controls the pivoting
mechanisms 210 according to the height information to adjust angle
relationships between the displayer 121, the optical lens 122, and
the polarizer 123, so as to change the elevation angle of the 3D
display system 300.
[0030] Based on the above, the 3D display system of the disclosure
not only allows a viewer to view a 3D image in 360 degrees, but
also adjusts an optimal elevation angle according to the viewer's
height and observation posture (such as standing or squatting),
providing an optimal effect for the viewer viewing the image.
[0031] The disclosure has been described above through examples and
embodiments. It is to be appreciated that the disclosure is not
limited to the embodiments disclosed. Instead, the disclosure
encompasses various modifications and similar arrangements
(including those apparent to persons of ordinary skill in the art).
Therefore, the appended claims shall be interpreted in broadest
sense to encompass all such modifications and similar
arrangements.
* * * * *